The price of a solar panel can vary widely based on several factors, including the brand, size, efficiency, and technology used. On average, homeowners can expect to pay anywhere from $150 to $300 for a single solar panel plate. High-efficiency models or premium brands may cost more, sometimes exceeding $350 per panel. It's important to note that the price of solar panels has been decreasing over the past decade, driven by technological advancements and increased competition in the solar market.